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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "utilmoneystr.h"
#include "core.h"
#include "tinyformat.h"
#include "utilstrencodings.h"
using namespace std;
string FormatMoney(const CAmount& n, bool fPlus)
{
// Note: not using straight sprintf here because we do NOT want
// localized number formatting.
int64_t n_abs = (n > 0 ? n : -n);
int64_t quotient = n_abs/COIN;
int64_t remainder = n_abs%COIN;
string str = strprintf("%d.%08d", quotient, remainder);
// Right-trim excess zeros before the decimal point:
int nTrim = 0;
for (int i = str.size()-1; (str[i] == '0' && isdigit(str[i-2])); --i)
++nTrim;
if (nTrim)
str.erase(str.size()-nTrim, nTrim);
if (n < 0)
str.insert((unsigned int)0, 1, '-');
else if (fPlus && n > 0)
str.insert((unsigned int)0, 1, '+');
return str;
}
bool ParseMoney(const string& str, CAmount& nRet)
{
return ParseMoney(str.c_str(), nRet);
}
bool ParseMoney(const char* pszIn, CAmount& nRet)
{
string strWhole;
int64_t nUnits = 0;
const char* p = pszIn;
while (isspace(*p))
p++;
for (; *p; p++)
{
if (*p == '.')
{
p++;
int64_t nMult = CENT*10;
while (isdigit(*p) && (nMult > 0))
{
nUnits += nMult * (*p++ - '0');
nMult /= 10;
}
break;
}
if (isspace(*p))
break;
if (!isdigit(*p))
return false;
strWhole.insert(strWhole.end(), *p);
}
for (; *p; p++)
if (!isspace(*p))
return false;
if (strWhole.size() > 10) // guard against 63 bit overflow
return false;
if (nUnits < 0 || nUnits > COIN)
return false;
int64_t nWhole = atoi64(strWhole);
CAmount nValue = nWhole*COIN + nUnits;
nRet = nValue;
return true;
}
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